Hello and welcome to our forums,
Thank you for your interest in Advanced Installer.
We do not have complete out of the box functionality for your request, but you can achieve what you need by developing your own
custom action which will search for the next partition of the Windows volume and save the result into a
property.
Then you can just create a
property-based folder and use its
"Sharing" tab to share it across the network at install time.
All the best,
Daniel